20 pc Brown N.O. Recessed Door Contacts (NORMALLY OPEN) Alarm Door Window Sensors With Magnetic Reed Switch.
5 In Stock
- 20 Brown ABS Normally Open Door Contact Switch
- .2 Amp Maximum Switch Current
- Will make Sense Door Closer at Roughly ¾” or 15mm
- This Contact Works with Any Access Control or Burglar Alarm System Available
- NORMALLY OPEN: When the door or window is open, the contact will give an closed signal and when the door is closed the contact will give a open (circuit) signal.